His lawyers have said he will plead guilty in exchange for a life prison sentence, but prosecutors have rejected that offer.

He is due to stand trial early next year but no exact date has been set.

Stoneman Douglas principal Ty Thompson is currently under investigation as part of the Broward County school district’s ongoing probe into the mass shooting, the Herald reported.

If you or someone you know needs help, please contact Lifeline on 13 11 14. There is also an anonymous online chat service available between 8pm and 4am AEST at Lifeline.org.au, or visit Beyond Blue’s website.